CN103532509A - Circuit, method and mobile terminal for regulating power consumption of power amplifier - Google Patents
Circuit, method and mobile terminal for regulating power consumption of power amplifier Download PDFInfo
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- CN103532509A CN103532509A CN201310443115.3A CN201310443115A CN103532509A CN 103532509 A CN103532509 A CN 103532509A CN 201310443115 A CN201310443115 A CN 201310443115A CN 103532509 A CN103532509 A CN 103532509A
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Abstract
The embodiment of the invention provides a circuit, a method and a mobile terminal for regulating the power consumption of a power amplifier. In the first time, a processor controls Tuner to traverse all states; meanwhile, a current detection module detects the current of PA (power amplifier) under each state; the processor takes the state of Tuner when the current of the PA is minimum as the state of the Tuner to fix; and the state is kept constant in the second time; when the PA transmission power is satisfied, PA load is enabled to be under the relatively minimum current state, the lower power consumption of PA is guaranteed, and the battery cruising ability of the mobile terminal is improved.
Description
Technical field
The present invention relates to equipment power dissipation technical field, relate in particular to a kind of circuit, method and mobile terminal of regulating power amplifier power consumption.
Background technology
Because mobile terminal is the limited equipment of a kind of electric energy, the power consumption that how to reduce mobile terminal is very important for the battery flying power of lifting mobile terminal.Except display screen, power consumption rich and influential family in mobile terminal is exactly that (mobile terminal is near the part of radio-frequency antenna for radio-frequency front-end, comprise transmitting path and receiving path) in power amplifier (Power Amplifier, PA), also claim radio-frequency power amplifier (RF PA, Radio Frequency Power Amplifier).Particularly, along with mobile terminal standard is to 3.5G or 4G evolution, the radio-frequency front-end in mobile terminal will be very complicated, and radio-frequency front-end will comprise the power amplifier of many different frequency ranges, different systems.Under the prerequisite of fixing powered battery ability, the size of PA power consumption affects the battery flying power of mobile terminal closely.
Unaffected in order to guarantee the power output of PA, in prior art, normal employing is used for the power detection loop of closed-loop control PA transmitting power and the impact that tuner (Tuner) comes compensating load to produce PA transmitting power, but current this design, due to mobile terminal in actual use, the meeting of PA load changes, the variation of this PA load, can cause the variation of PA power consumption, in PA power back-off process, reckon without the problem of PA power consumption, make mobile terminal in use, cannot guarantee that PA reaches lower power consumption, had a strong impact on the battery flying power of mobile terminal.
Summary of the invention
The embodiment of the present invention provides a kind of circuit, method and mobile terminal of regulating power amplifier power consumption, in order to guarantee the lower power consumption of mobile terminal, and the battery flying power of lifting mobile terminal.
First aspect, the embodiment of the present invention provides a kind of circuit of regulating power amplifier PA power consumption, comprising:
Tuner Tuner;
The power detection loop for closed-loop control PA transmitting power that comprises processor and PA, described Tuner one end is connected with described power detection loop, and the other end is connected with radio-frequency antenna;
The current detection module being connected with described processor with the output of PA respectively;
Described processor, for control all states of described Tuner traversal self within the very first time, and according to the input of current detection module, the state of described Tuner is set at hour corresponding state of PA electric current described in all states;
Described Tuner, within the second time, keeps hour corresponding state of described PA electric current;
Described current detection module, for when all states of Tuner traversal self, detects the electric current of PA under each state of Tuner respectively, and testing result is exported to described processor.
In conjunction with first aspect, in the possible execution mode of the first, described processor is integrated in the baseband chip of power detection loop;
Described power detection loop, also comprises: rf chip, switch module and power coupler;
In described power detection loop, described baseband chip, described rf chip, described PA, described switch module are connected successively with described power coupler;
Described Tuner is connected with baseband chip with the power coupler in described power detection loop respectively.
In conjunction with first aspect, the execution mode that the first of first aspect is possible, in the possible execution mode of the second, described current detection module, comprising: current sense amplifier and the resistance in parallel with described current sense amplifier.
In conjunction with first aspect, first and second of first aspect kind of possible execution mode, in the third possible execution mode, described processor, specifically for adjusting the matching element value of described Tuner and exporting to described Tuner;
Described Tuner, specifically for according to the output of described processor, travels through self all state.
In conjunction with first aspect, first and second of first aspect kind of possible execution mode, in the 4th kind of possible execution mode, between described switch module and the output of PA, also comprises: duplexer.
Second aspect, the embodiment of the present invention provides a kind of mobile terminal, and described mobile terminal comprises the circuit of the regulating power amplifier PA power consumption described in any one in the first～tetra-kind of possible execution mode of aforementioned first aspect, first aspect.
In conjunction with second aspect, in the possible execution mode of the first, described mobile terminal is mobile phone or panel computer.
The third aspect, the embodiment of the present invention provides a kind of method of regulating power amplifier PA power consumption, and the method comprises:
Within the very first time, control all states of tuner Tuner traversal self in mobile terminal; Under each state of Tuner, the electric current of described mobile terminal intermediate power amplifier PA is detected respectively; The electric current of determining PA described in all states of Tuner is the corresponding state of hour Tuner; The state of described Tuner is set at the electric current of PA described in all states corresponding state of hour Tuner;
Control described Tuner and within the second time, keep hour corresponding state of described PA electric current.
In conjunction with the third aspect, in the possible execution mode of the first, all states of the tuner of described control mobile terminal traversal self, comprising:
By adjusting the matching element value of described tuner and exporting to described Tuner, make all states of described tuner traversal self.
The beneficial effect of the embodiment of the present invention comprises:
Circuit, method and the mobile terminal of the regulating power amplifier power consumption that the embodiment of the present invention provides, within the very first time, processor is controlled Tuner and is traveled through all states, simultaneously, current detection module detects the electric current of PA under each state, processor using PA electric current the state of hour Tuner as the state of Tuner, be fixed up and within the second time, keep this state constant, make when meeting PA transmitting power, guarantee that PA load is in the relatively minimum state of electric current, guarantee the lower power consumption of PA, promoted the battery flying power of mobile terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit diagram of prior art;
The circuit diagram of the circuit of the regulating power amplifier PA power consumption that Fig. 2 provides for the embodiment of the present invention;
In each cycle that Fig. 3 provides for the embodiment of the present invention, select the flow chart of the state of the Tuner that PA minimum current value is corresponding;
An example of the circuit of the regulating power amplifier PA power consumption that Fig. 4 provides for the embodiment of the present invention;
The flow chart of the method for the regulating power amplifier PA power consumption that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of circuit, method and the mobile terminal of a kind of regulating power amplifier the power consumption below embodiment of the present invention being provided is described in detail.
For the circuit of the regulating power amplifier power consumption that the embodiment of the present invention provides is described better, before the circuit of the regulating power amplifier power consumption that provides of the explanation embodiment of the present invention, to Tuner in existing mobile terminal be briefly described as follows for this part circuit of the power detection loop of closed-loop control PA transmitting power:
As shown in Figure 1, in an example of existing power detection loop, comprise PA101, switch module 102, power coupler 103, baseband chip 104, rf chip 105(and certainly can also have miscellaneous part and/or formation, at this, do not limit), wherein, baseband chip 104, rf chip 105, PA101, switch module 102, power coupler 103 are connected successively, Tuner106 one end is connected with baseband chip 104 with the power coupler 103 in power detection loop respectively, and the other end is connected with the radio-frequency antenna 107 of mobile terminal; Power detection loop closed loop detects PA101 transmitting power, when finding that the power output of PA101 does not reach maximum transmission power, can reach by promoting the input power of PA101 the object of the transmitting power that makes up PA, simultaneously, after can finely tuning by Tuner106 (now Tuner106 is preset in a fixing state) transmitting power, pass through radio-frequency antenna 107 emitting radio frequency signals, in prior art, Tuner106 is optional, in other words, the input power that also can be only promotes PA by power detection loop makes up PA transmitting power.
The circuit of the regulating power amplifier power consumption that the embodiment of the present invention provides, consider that the load meeting of the PA in mobile terminal for example, changes along with the situation (when user's head or hand are near mobile terminal) of the actual use of user, cause the electric current of PA bigger than normal in (for the electric current under the desired load in when design), the in the situation that of PA voltage constant, the power consumption of PA can be bigger than normal, that is to say, the electric current meeting forward of PA affects the power consumption levels of PA, for in the actual use procedure of user, as far as possible by PA regulating power consumption to lower level, inventor improves for Tuner in existing mobile terminal with for this part circuit of the power detection loop of closed-loop control PA transmitting power.
Specifically, the circuit of the regulating power amplifier PA power consumption that the embodiment of the present invention provides, as shown in Figure 2, comprise: tuner Tuner201 and the power detection loop for closed-loop control PA transmitting power that comprises processor 202 and PA203, Tuner201 one end is connected with power detection loop, the other end is connected with the radio-frequency antenna 204 of mobile terminal, the circuit of the regulating power amplifier PA power consumption that the embodiment of the present invention provides, also comprises: the current detection module 205 being connected with processor 202 with the output of PA203 respectively; Wherein:
Tuner201, within the second time, keeps hour corresponding state of PA203 electric current;
Further, as shown in Figure 2, processor is integrated in the baseband chip 209 of power detection loop, and above-mentioned power detection loop, also comprises: rf chip 206, switch module 207, power coupler 208;
In above-mentioned power detection loop, baseband chip 209, rf chip 206, PA203, switch module 207, power coupler 208 are connected successively;
Tuner201 is connected with baseband chip 209 with the power coupler 208 in power detection loop respectively.
When mobile terminal load changes, in the specific implementation for example when mobile terminal in running order (start and non-holding state under), the circuit of the adjusting PA power consumption that the embodiment of the present invention provides can trigger controls all states of Tuner traversal self and current detection module to operation that under each state of Tuner, PA electric current detects within the very first time.
Moreover, because mobile terminal is under holding state, the cycle that its radiofrequency signal sends is longer, compared with long many of cycle that under operating state, (such as call or data download etc.) radiofrequency signal sends, the power consumption of PA is relatively little, now, can the impact on the power consumption of PA without the state of considering Tuner, therefore, the circuit of the regulating power amplifier PA power consumption that the embodiment of the present invention provides, preferably, without at mobile terminal, under non operating state, trigger within the very first time, control all states of Tuner traversal self and current detection module to each state of Tuner under the operation that detects of PA electric current, such design has been saved the resource of processor to a certain extent.
Further, due to mobile terminal in use, load meeting constantly changes, in order to guarantee that PA can reach lower power consumption in real time, above-mentioned processor is controlled all states of Tuner traversal self, the testing result according to current detection module for electric current under each state within the very first time, select the minimum corresponding state of an electric current, tuner is within the second time, keep the minimum corresponding constant process of state of this electric current, can repeat, preferably, adopt the mode of periodically repeated execution.
For example set and take 10s as one-period, processor is in the early stage in each cycle of setting, be within incipient several seconds in each cycle (being the very first time), by continuous, adjust the matching element value that inner each state of Tuner is corresponding and export to Tuner, make Tuner constantly change state to realize the traversal of state, within the remaining time of this 10s (i.e. the second time), it is constant that Tuner will maintain this state.
Above-mentioned processor is by matching element value corresponding to each state of adjustment Tuner inside and export to Tuner, thereby the specific implementation of the various states of control Tuner traversal self belongs to prior art, does not repeat them here.
Within the very first time in each cycle in all states of Tuner traversal self, current detection module detects the electric current of PA under each state of Tuner, the current value of detection is returned to processor, by processor, determine the wherein minimum corresponding Tuner state of current value, like this, within the remaining time in each cycle (i.e. in the second time), the minimum corresponding Tuner state of current value is set to the state (being fixed up within this cycle) of Tuner in this cycle.
Situation for periodically repeated execution, take the flow process shown in Fig. 3 as example, to selecting the process of the state of the Tuner that PA minimum current value is corresponding to describe in each cycle, when mobile terminal is in running order, regularly within the very first time in each cycle, travel through each state of Tuner, suppose that Tuner has 10 states, by adjusting the matching element value of Tuner inside, make it to travel through successively in the following order each state: Tuner state 1 → Tuner state 2 → Tuner state 3......Tuner state 10, detect respectively Tuner state 1 simultaneously, Tuner state 2, the electric current of Tuner state 3......Tuner state 10 corresponding PA is: PA electric current 1, PA electric current 2, PA electric current 3......PA electric current 10, PA current value under each state of processor monitoring Tuner, determine in this cycle, the state of the corresponding Tuner of PA minimum current value, within i.e. the second time of remaining time in this cycle, the state of Tuner is fixed on to the state that this PA minimum current value is corresponding.
After this end cycle, next cycle repeats said process again.
The circuit of the above-mentioned regulating power amplifier PA power consumption that the embodiment of the present invention provides, in order to reach the lower object of power consumption of PA in the actual use procedure of mobile terminal, in fact be exactly when PA power output is detected and compensated, make as much as possible that PA's is least in power-consuming, also the electric current that is PA is minimum, based on this, by the current value of the various states of periodic scanning Tuner and the PA of correspondence, when meeting PA power output (carrying out PA power detection and compensation), by the power consumption control of PA lower state under current behaviour in service, thereby realize the lifting of whole battery of mobile terminal flying power.
The circuit of the regulating power amplifier PA power consumption that the embodiment of the present invention provides, can there is multiple embodiment in the specific implementation, example circuit diagram as shown in Figure 4, in this circuit diagram, baseband chip 209 one end that comprise processor 202 connect the rf inputs of PA203 by rf chip 206, the other end is also connected with also the in succession radio-frequency antenna 204 of mobile terminal of power coupler 208 and Tuner201(Tuner one end), baseband chip 209, rf chip 206, PA203, duplexer 209, switch module 207 and power coupler 208 form power detection loop, simultaneously, radio-frequency (RF) output end at PA203, also be connected with current detection module 205, this current detection module comprises a current sense amplifier (Current Sense Amplifiers) 2051 and the resistance (generally adopt precision resistance) 2052 in parallel with this current sense amplifier.
In circuit diagram as shown in Figure 4, the function of power back-off part adopts the way of prior art, by power detection loop, undertaken after power detection, if need to promote the power output of PA, baseband chip will output to the rf inputs (RF IN) of PA by rf chip after the signal modulation after power ascension, after PA amplifies, by Tuner, finely tuned by radio-frequency antenna and exported, concrete power detection process belongs to prior art, does not repeat them here.
In power detection, processor in baseband chip is also in the very first time in the early stage in each cycle of setting, control Tuner and travel through its all state, current detection module detects the electric current of PA simultaneously, testing result is exported to the processor in baseband chip, processor selection in baseband chip is the Tuner state corresponding to electric current of minimum wherein, and interior (i.e. the second time) Tuner remaining time being controlled in this cycle is fixed on this state.
Circuit shown in Fig. 4, when PA power output is detected and compensated, makes the state of the electric current minimum correspondence of Tuner in PA as much as possible, and now PA's is least in power-consuming, thereby has reached reduction PA power consumption, promotes the object of battery flying power.
The embodiment of the present invention also provides a kind of mobile terminal, the circuit that this mobile terminal has comprised the above-mentioned regulating power amplifier power consumption that the embodiment of the present invention provides;
Preferably, the above-mentioned mobile terminal that the embodiment of the present invention provides, can be that mobile phone, panel computer or other contact more mobile device with human body.
Through experiment showed, in the situation that same high-power use, adopt the circuit of the above-mentioned regulating power amplifier power consumption that the embodiment of the present invention provides, compared with existing mobile terminal, can be so that approximately 0.037～0.111 watt of the power-dissipation-reduced of PA.
Based on same inventive concept, the embodiment of the present invention also provides a kind of method of regulating power amplifier PA power consumption, the principle that the principle of dealing with problems due to the method is dealt with problems to the circuit of aforementioned regulating power amplifier PA power consumption is similar, therefore the enforcement of the method can, referring to the enforcement of aforementioned circuit, repeat part and repeat no more.
The method of the regulating power amplifier PA power consumption that the embodiment of the present invention provides, as shown in Figure 5, comprises the steps:
S501, within the very first time, control all states of tuner Tuner traversal self in mobile terminal; Under each state of Tuner, the electric current of described mobile terminal intermediate power amplifier PA is detected respectively; The electric current of determining PA described in all states of Tuner is the corresponding state of hour Tuner; The state of described Tuner is set at the electric current of PA described in all states corresponding state of hour Tuner;
S502, control described Tuner and within the second time, keep hour corresponding state of described PA electric current.
Further, in above-mentioned S501, the tuner (being arranged in the radio-frequency front-end of mobile terminal) of controlling mobile terminal travels through self all state, specifically by adjusting the matching element value of described tuner and exporting to described Tuner, all states of described tuner traversal self is realized.
Circuit, method and the mobile terminal of the regulating power amplifier power consumption that the embodiment of the present invention provides, within the very first time, processor is controlled Tuner and is traveled through all states, simultaneously, current detection module detects the electric current of PA under each state, processor using PA electric current the state of hour Tuner as the state of Tuner, be fixed up and within the second time, keep this state constant, make when meeting PA transmitting power, guarantee that PA load is in the relatively minimum state of electric current, guarantee the lower power consumption of PA, promoted the battery flying power of mobile terminal.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (9)
1. a circuit for regulating power amplifier PA power consumption, is characterized in that, comprising:
Tuner Tuner(201);
Comprising processor (202) and the power detection loop for closed-loop control PA transmitting power PA(203), described Tuner(201) one end is connected with described power detection loop, and the other end is connected with radio-frequency antenna (204);
Respectively with PA(203) the current detection module (205) that is connected with described processor (202) of output;
Described processor (202), for control described Tuner(201 within the very first time) travel through self all state, and according to the input of current detection module (205), described Tuner(201) state be set at PA(203 described in all states) electric current hour corresponding state;
Described Tuner(201), within the second time, keep described PA(203) electric current hour corresponding state;
Described current detection module (205), at Tuner(201) while traveling through self all state, respectively to Tuner(201) PA(203 under each state) and electric current detect, and testing result is exported to described processor (202).
2. circuit as claimed in claim 1, is characterized in that, described processor is integrated in the baseband chip (209) of power detection loop;
Described power detection loop, also comprises: rf chip (206), switch module (207) and power coupler (208);
In described power detection loop, described baseband chip, described rf chip (206), described PA(203), described switch module (207) is connected successively with described power coupler (208);
Described Tuner(201) be connected with baseband chip (209) with the power coupler (208) in described power detection loop respectively.
3. circuit as claimed in claim 1 or 2, is characterized in that, described current detection module (205), comprising: current sense amplifier (2051) and the resistance (2052) in parallel with described current sense amplifier.
4. the circuit as described in claim 1-3 any one, is characterized in that, described processor (202), specifically for adjusting described Tuner(201) matching element value and export to described Tuner(201);
Described Tuner(201), specifically for according to the output of described processor (202), travel through self all state.
5. the circuit as described in claim 1-3 any one, is characterized in that, between described switch module (207) and output PA(203), also comprises: duplexer (209).
6. a mobile terminal, is characterized in that, described mobile terminal comprises the circuit of the regulating power amplifier PA power consumption as described in claim 1-5 any one.
7. mobile terminal as claimed in claim 6, is characterized in that, described mobile terminal is mobile phone or panel computer.
8. a method for regulating power amplifier PA power consumption, is characterized in that, described method comprises:
Within the very first time, control all states of tuner Tuner traversal self in mobile terminal; Under each state of Tuner, the electric current of described mobile terminal intermediate power amplifier PA is detected respectively; The electric current of determining PA described in all states of Tuner is the corresponding state of hour Tuner; The state of described Tuner is set at the electric current of PA described in all states corresponding state of hour Tuner;
Control described Tuner and within the second time, keep hour corresponding state of described PA electric current.
9. method as claimed in claim 8, is characterized in that, all states of the tuner traversal of described control mobile terminal self, comprising:
By adjusting the matching element value of described tuner and exporting to described Tuner, make all states of described tuner traversal self.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310443115.3A CN103532509A (en) | 2013-09-25 | 2013-09-25 | Circuit, method and mobile terminal for regulating power consumption of power amplifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310443115.3A CN103532509A (en) | 2013-09-25 | 2013-09-25 | Circuit, method and mobile terminal for regulating power consumption of power amplifier |
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Cited By (3)
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| CN105095133A (en) * | 2014-05-04 | 2015-11-25 | 曾广兴 | Wi-Fi controlling integrated complex impedance tuner for microwave load-pull measurement |
| CN107066399A (en) * | 2017-04-05 | 2017-08-18 | 东莞赛唯莱特电子技术有限公司 | Integral intelligent microwave pad draws Multi probe pre-matching automatic dispenser |
| US11683753B2 (en) | 2021-04-09 | 2023-06-20 | Inventec Appliances (Pudong) Corporation | Wireless transmission system and power saving method thereof |
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| CN1297609A (en) * | 1999-04-01 | 2001-05-30 | 松下电器产业株式会社 | Transmitter and receiver |
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Application publication date: 20140122 |